McCoy was the Broncos offensive coordinator from 2010-2012 but spent the last three seasons as head coach of the San Diego Chargers, finishing with a mere 27-37 record after posting 9-7 seasons in 2013 and 2014.

So does bringing back McCoy make a lot of sense for the Broncos? In short, it’s tough to tell.

He somehow got Tim Tebow to lead Denver to an AFC West title in 2011, only to work with Peyton Manning to revitalize a strong passing game that also turned Knowshon Moreno into a solid number one running back.

And Philip Rivers and Melvin Gordon shined with McCoy as the head coach, but the Chargers were among the worst teams in the AFC these past two regular seasons. That was simply from the Chargers failing to find depth on the offensive line and wide receiver position.

This is not the offense McCoy had in 2012, either. Back then, Denver had arguably the NFL’s best offensive line. Eric Decker and Demaryius Thomas were Pro Bowlers. Decker has been replaced by Emmanuel Sanders, and Thomas is no longer a top-five wide receiver.

But one can’t deny the success he had in Denver, and there’s no doubting his heavy passing offense is what the Broncos need. If they bring in a veteran like 37-year-old Tony Romo, it would be a similar position in 2012, where McCoy and 36-year-old Peyton Manning had to work on a new system together.

It’s still early, but given the craftiness and creativity McCoy displayed as offensive coordinator in Denver, it’s tough to not be excited about his reported return to the Mile High City.